Iv got a fuel pressure regulator but I think the pump might be braking down as the car won’t rev over 6k under load it’s slowly been getting worse. Iv got the Rev limiter set at 7200 but won’t get there anymore. It’s like I’m hitting the limiter at 6k

I’m going to put a fuel pressure gauge in and check it. Iv also read that you don’t have a return to tank with a carb so Iv also bought a carb tank that I’ll fit soon and probably get a facet red top pump with a filter King regulator.